从 NOWPayments / Coinbase Commerce 迁移

- const NP = "https://api.nowpayments.io/v1";
+ const NP = "https://blockwallets.io/nowpayments/v1";

const res = await fetch(`${NP}/payment`, {
  method: "POST",
  headers: { "x-api-key": process.env.NOWPAYMENTS_API_KEY, "content-type": "application/json" },
  body: JSON.stringify({
    price_amount: 49.9, price_currency: "usd", pay_currency: "usdttrc20",
    order_id: "A-1001", order_description: "Pro plan",
    ipn_callback_url: "https://shop.example/ipn/nowpayments",
  }),
});
const { payment_id, pay_address, pay_amount } = await res.json();

import crypto from "node:crypto";

// 和 NOWPayments 文档的写法一样(我们发出的 body 本身已经排好序,直接对原始 body 算也对)
function sortObject(obj) {
  return Object.keys(obj).sort().reduce((r, k) => {
    r[k] = obj[k] && typeof obj[k] === "object" ? sortObject(obj[k]) : obj[k];
    return r;
  }, {});
}
function verifyIpn(params, sig, ipnSecret) {
  const hmac = crypto.createHmac("sha512", ipnSecret).update(JSON.stringify(sortObject(params))).digest("hex");
  return crypto.timingSafeEqual(Buffer.from(hmac), Buffer.from(sig || ""));
}
// verifyIpn(req.body, req.headers["x-nowpayments-sig"], process.env.NOWPAYMENTS_IPN_SECRET)

$raw = file_get_contents('php://input');
$data = json_decode($raw, true);
tksort($data);  // NOWPayments 文档里的递归 ksort
$hmac = hash_hmac('sha512', json_encode($data, JSON_UNESCAPED_SLASHES), trim($ipnSecret));
$ok = hash_equals($hmac, $_SERVER['HTTP_X_NOWPAYMENTS_SIG'] ?? '');

// Node(coinbase-commerce-node)
const { Client } = require("coinbase-commerce-node");
- Client.init(process.env.COINBASE_COMMERCE_API_KEY);
+ Client.init(process.env.COINBASE_COMMERCE_API_KEY, "https://blockwallets.io/coinbase/");

# Python(coinbase-commerce)
- client = Client(api_key=API_KEY)
+ client = Client(api_key=API_KEY, base_api_uri="https://blockwallets.io/coinbase/")

// PHP(coinbase/coinbase-commerce)
- ApiClient::init($apiKey);
+ ApiClient::init($apiKey, 'https://blockwallets.io/coinbase/');

curl -X POST https://blockwallets.io/coinbase/charges \
  -H "X-CC-Api-Key: $COINBASE_COMMERCE_API_KEY" -H "X-CC-Version: 2018-03-22" \
  -H "content-type: application/json" \
  -d '{"name":"Order #12345","description":"Pro plan","pricing_type":"fixed_price",
       "local_price":{"amount":"100.00","currency":"USD"},
       "redirect_url":"https://shop.example/success","cancel_url":"https://shop.example/cancel",
       "metadata":{"order_id":"12345"}}'
# → 201 {"data": {"id": "…", "code": "7C7V5ECK", "hosted_url": "https://blockwallets.io/pay/inv_…", "timeline": [{"status": "NEW", …}], …}}

import crypto from "node:crypto";

// 和官方 SDK 的 Webhook.verifySigHeader 一样:HMAC-SHA256(shared secret, 原始 body)
function verifyWebhook(rawBody, sig, sharedSecret) {
  const hmac = crypto.createHmac("sha256", sharedSecret).update(rawBody, "utf8").digest("hex");
  return crypto.timingSafeEqual(Buffer.from(hmac), Buffer.from(sig || ""));
}
// verifyWebhook(rawBody, req.headers["x-cc-webhook-signature"], process.env.COINBASE_WEBHOOK_SECRET)
// 官方 SDK 照用:Webhook.verifyEventBody(rawBody, signature, sharedSecret)